1 files changed, 4 insertions, 0 deletions
diff --git a/sql/field.h b/sql/field.h
index dbb2e030f74..3838c924419 100644
--- a/sql/field.h
+++ b/sql/field.h
@@ -2244,6 +2244,10 @@ public:
   {
     return (flags & (BINCMP_FLAG | BINARY_FLAG)) != 0;
   }
+  uint virtual_col_expr_maxlen()
+  {
+    return 255 - FRM_VCOL_HEADER_SIZE(interval != NULL);
+  }
 private:
   const String empty_set_string;
 };